Class: TableSaw::ForeignKey

Inherits:
Object
  • Object
show all
Defined in:
lib/table_saw/foreign_key.rb

Defined Under Namespace

Classes: Column

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(from_table:, from_column:, to_table:, to_column:, name: nil) ⇒ ForeignKey

Returns a new instance of ForeignKey.



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# File 'lib/table_saw/foreign_key.rb', line 39

def initialize(from_table:, from_column:, to_table:, to_column:, name: nil)
  @name = name
  @from_table = from_table
  @from_column = from_column
  @to_table = to_table
  @to_column = to_column
end

Instance Attribute Details

#from_column ⇒ Object (readonly)

Returns the value of attribute from_column.



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# File 'lib/table_saw/foreign_key.rb', line 37

def from_column
  @from_column
end

#from_table ⇒ Object (readonly)

Returns the value of attribute from_table.



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# File 'lib/table_saw/foreign_key.rb', line 37

def from_table
  @from_table
end

#name ⇒ Object (readonly)

Returns the value of attribute name.



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# File 'lib/table_saw/foreign_key.rb', line 37

def name
  @name
end

#to_column ⇒ Object (readonly)

Returns the value of attribute to_column.



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# File 'lib/table_saw/foreign_key.rb', line 37

def to_column
  @to_column
end

#to_table ⇒ Object (readonly)

Returns the value of attribute to_table.



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# File 'lib/table_saw/foreign_key.rb', line 37

def to_table
  @to_table
end

Instance Method Details

#column ⇒ Object 



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# File 'lib/table_saw/foreign_key.rb', line 51

def column
  @column ||= Column.new(from_column)
end

#eql?(other) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/table_saw/foreign_key.rb', line 55

def eql?(other)
  hash == other.hash
end

#hash ⇒ Object 



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# File 'lib/table_saw/foreign_key.rb', line 59

def hash
  [from_table, from_column, to_table, to_column].hash
end

#type_condition ⇒ Object 



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# File 'lib/table_saw/foreign_key.rb', line 47

def type_condition
  @type_condition ||= column.type_condition
end